KARTFRAME_FPSLOG=2 now times every set (game-frame and refresh sets) with in-pass timestamps per
draw class (scene, HUD, fades, EFB effects, sink copy); frame/perf/gpuprof.py tabulates them.
Eyes may render straight into the swapchain images (the bridge's DirectTargets); the Vulkan backend
measures both ways on the first race sets and keeps the cheaper (KARTFRAME_DIRECT_EYES=0/1 forces).
The native render of an immersive race frame stops after its last copy for the eyes on Linux too
(KARTFRAME_MONO_FULL=1 keeps it whole) and is clipped to the copies' rectangles
(KARTFRAME_NATIVE_CLIP=0). DisplayTimeNanos returns the converted CLOCK_MONOTONIC time directly
(two clock reads put two stamps 0.24 ms off in the orchestrator's soak); the mock counts such
offsets as 'between', honours MUTABLE_FORMAT. Not yet soaked.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
- Eyes render under a VK_EXT_fragment_density_map: full rate around each eye's forward direction,
2x2 then 4x4 pixel blocks towards the edges ([vr] foveation = off|low|medium|high, default off).
XR_FB_foveation cannot help here: the runtime's maps only shape passes drawing into its
swapchain, and the eyes reach it through a copy.
- aurora-main/patches/dawn/aurora_fdm.inc: Dawn enables the extension only on request and for
dynamic rendering, flags every render pipeline, and chains an immutable RG8 map into any pass
whose first color attachment is a view bound to one (ABI: include/aurora/dawn_fdm_abi.h).
- android/Build-QuestDawn.ps1 builds the pinned Dawn revision with those patches for arm64
(dawn-build CI flags, protobuf off) into a cached package; Build-Quest.ps1 links it
(-StockDawn opts out) and AuroraDawnProvider.cmake enables the ABI from its manifest.
- lib/gfx/foveation.hpp generates the maps (32 px per texel, densities 255/127/63); an eye is
foveated only when single_pass_eyes draws it in one render pass. Menus never are.
- Live level from the headset panel's VR tab and the launcher; the launch decides whether the
device has maps. debug.wiicompiled.foveation and debug.wiicompiled.fdm for A/B.
- Tests: Foveation cases in gx_fifo_tests, mkw_vr_config_tests. Docs: OPENXR.md, quest-port.md.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
